Joan Alris Ellis
Phyllis Thaxter
Dr. Bergson
Edmund Gwenn
Capt. O'Malley
Oscar O'Shea
Governor
Minor Watson
Martha--Governor's Wife
Virginia Brissac
Karen (voice)
Audrey Totter
Prison Guard
Harry Strang
Judge
Forbes Murray
Juror (uncredited)
Tom Coleman
Cop (uncredited)
Clancy Cooper
Prison Janitor (uncredited)
Eddie Dunn
George Meader
Bob Arnold
Henry H. Daniels Jr.
Howard M. Mitchell
Judge (uncredited)
Prison Technician (uncredited)
Harry Seymour
Prison Guard (uncredited)
Prosecutor (uncredited)
Forrest Taylor
Karen (voice) (uncredited)
Masher on Street (uncredited)
Anthony Warde
The Governor's Butler (uncredited)
Paul Weigel
Warden Clark (uncredited)
Crane Whitley
John Ellis
Addison Richards
Mrs. Ellis
Kathleen Lockhart
Dr. George Wilton
Francis Pierlot
Small Girl
Sharon McManus
Glenda
Gladys Blake
Mr. Herkheimer
Will Wright
Eric Russell (as Horace McNally)
Stephen McNally
Adaptation
Arch Oboler
Writer
Story
Director
Set Decoration
Edwin B. Willis
Art Direction
Cedric Gibbons
Original Music Composer
Bronislau Kaper
Director of Photography
Charles Salerno Jr.
Editor
Harry Komer
Producer
Jerry Bresler
Malcolm Brown
Unit Manager
Jack Gertsman
Camera Operator
Dave Ragin